Synthesis of a Complex Brasilicardin Analogue Utilizing a Cobalt-Catalyzed MHAT-Induced Radical Bicyclization Reaction

Org Lett. 2023 May 19;25(19):3451-3455. doi: 10.1021/acs.orglett.3c01019. Epub 2023 May 4.

Abstract

We designed and executed an expedient synthesis of a complex analogue of the potent immunosuppressive natural product brasilicardin A. Our successful synthesis featured application of our recently developed MHAT-initiated radical bicyclization, which delivered the targeted, complex analogue in 17 steps in the longest linear sequence. Unfortunately, this analogue showed no observable immunosuppressive activity, which speaks to the importance of the structural and stereochemical elements of the natural core scaffold.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Catalysis
  • Cobalt* / chemistry
  • Immunosuppressive Agents*

Substances

  • Cobalt
  • Immunosuppressive Agents